| 摘要 |
<p>The present invention comprises a continuous process for upstaging epoxy resins to produce resins with higher molecular weight, which process comprises: (a) continuously passing a solution of a compound having active hydrogens or reactive functional groups capable of reacting with a liquid epoxy resin, a liquid epoxy resin, an inert solvent, and a catalyst through a series of sequentially staged reaction chambers; (b) the equivalency ratios of said compound having active protons or reactive functional groups to liquid epoxy resin introduced into the reaction chambers being from about 3.3:1 up to 0.5:1; the temperature in the reaction chambers is in the range of 49 °C-216 °C (120 °F-420 °F), and increases from chamber to chamber, and maintaining the pressure at normal or above normal in said reaction chambers, and stirring the materials during the reaction thereof with a mixing means; and (d) discharging the higher molecular weight product epoxide resin or hydroxy-terminated polyether of the final stage reaction chamber.</p> |
